Tube rack



FIG. 1 is a front perspective view of an embodiment of a tube rack comprising a new, original and ornamental design;

FIG. 2 is a rear perspective view of the tube rack shown in FIG. 1;

FIG. 3 is a front elevational view of the tube rack shown in FIG. 1;

FIG. 4 is a rear elevational view of the tube rack shown in FIG. 1;

FIG. 5 is a right side elevational view of the tube rack shown in FIG. 1;

FIG. 6 is a left side elevational view of the tube rack shown in FIG. 1;

FIG. 7 is a top plan view of the tube rack shown in FIG. 1;

FIG. 8 is a bottom plan view of the tube rack shown in FIG. 1;

FIG. 9 is a front perspective view of the tube rack shown in FIG. 1 in an alternate configuration;

FIG. 10 is a front elevational view of the tube rack shown in FIG. 9;

FIG. 11 is a front perspective view of the tube rack shown in FIG. 1 in an alternate configuration;

FIG. 12 is a front elevational view of the tube rack shown in FIG. 11;

FIG. 13 is a rear elevational view of the tube rack shown in FIG. 11;

FIG. 14 is a left side elevational view of the tube rack shown in FIG. 11;

FIG. 15 is a right side elevational view of the tube rack shown in FIG. 11;

FIG. 16 is a top plan view of the tube rack shown in FIG. 11;

FIG. 17 is a bottom plan view of the tube rack shown in FIG. 11;

FIG. 18 is a front perspective view of an embodiment of a tube rack comprising a new, original and ornamental design;

FIG. 19 is a right side elevational view of the tube rack shown in FIG. 18;

FIG. 20 is a left side elevational view of the tube rack shown in FIG. 18;

FIG. 21 is a right side elevational view of the tube rack shown in FIG. 18 in an alternate configuration; and,

FIG. 22 is a rear perspective view of the tube rack shown in FIG. 18.

The broken lines depict environmental subject matter only and form no part of the claimed design. 

CLAIM We claim the ornamental design for a tube rack, as shown and described. 